Please answer all questions

1- If the annual fixed costs are 54000 dinars, the depreciation expense represents 20%, the contribution margin is 25%, and the unit selling price is 40 dinars. Required: Calculate the closing point of the plant (in quantities). 2- If the fixed costs are 42000 dinars, the target profit before tax is 8000 dinars, the unit sale price is 20 dinars, and the contribution margin is 8 dinars. Required: Calculate the value of sales.

3- If the tax rate is 25% and the target profit after tax is 12000 dinars, and the fixed costs The annual contribution is 22,000 dinars, and the contribution margin is 8 dinars per unit. Required: Calculate the amount of sales. 4- If the fixed costs are 60,000 dinars, the unit selling price is 80 dinars, and the variable cost is 64 dinars For the unit, the management decided to increase the annual salaries of marketing staff by 6000 dinars and reduce the commission Selling for 2 dinars per unit. Required: Calculate the point of similarity of costs.

5- If the planned sales are 6000 units, the fixed costs are 36000 dinars, and the realized profit is 12000 dinars, the selling price is 18 dinars, and the variable cost is 10 dinars, and the management decided to increase the price, which leads to Reduce sales by 20% and maintain the same level of profits. Required: Calculate the new selling price.